Improvement in electric indicators for elevators



`EDWIN H OLM ES. y Electric Insulators for Elevators.

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NITED STATES rareza PATENT OFFICE.

EDWIN HOLMES, OF BROOKLYN, NEV YORK.

Speciiication forming part of Letters Patent No. 121,620, dated December5, 1871.

To all whom it may concern:

Beit linown that l, EDWIN HOLMES, of Brooklyn, in the county ot Kingsand State ot' New York, have invented a new and useful Improvement inElectric indicating Elevators, and I do hereby declare that thetollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the saine, referencebeing had to the accompanying drawing forming part ot' thisspeciiication.

Figure l represents a sectional elevation ot' my invention. Fig. 2 is asectional elevation ot' a imidiiieation ol" the saine. lfig. 3 is adetail transverse section oi' the latte Similar letters ol"referenceindicate corresponding` parts.

This invention relates to a novel combination ot' an elevator in hotelsand other buildings with stationary electrical alniaratus, with theobject or causing the production ot' visible and audible signals withinthe elevator by electrical impulses given by the closing ot' circuits onthe several loors. 3y electrical means the persons controllingl theelevator can thus be conveniently informed on which tloor the elevatormay be wanted. 'lhe invention consists in combining the movableelevator, which contains a suitable indicating instrument with atlexible or movable series or' conductors leading' to the severaltloors, and thence to the operating battery. As the elevator moves up ordown the liexible or movable coinluctors retain the metallic connectionbetween the parts otthe indicator and the stationary cominci-ors thatextend troni the battery.

A, in the drawing, represents an elevator ot' suitable style andconstruction, arranged within a suitable building having tloors, B BlB2, &c., and suspended andinoved up and down by suitable means. Il is anindicator' or recording instrument, secured within the ele iator andprovided with pointers, or equivalent devices, ot' a number equal to thenumber oi' stories in the building or more. From the instrument O eX-tends to the top, side, or bottom of the elevator as many conductingwires, a al a2 a3, die., as may be required for the purpose of workingsaid instrument. These wires are continued separately and properlyinsulated in a rope, l), which eX- tends from the elevator up or down asmay be found preferable, to a fixed part ofthe building, where itsconstituent wires are again separately connected with wires b bl b2 o,Sac., that lead respectively to the switches on the several ioors, andthence to the battery, one, b4, leading direct to thc battery E.Continuous n'letallic connection is thus obtained between the wires c ala2, 85o., and the wires I) b1 b2, &c., respectively, so that in whateverposition the elevator may be when a circuit is closed by the switch orknob on any one floor the corresponding pointer will be moved on theindicator or other visible or audible notice given that the elevator iswanted on such a iioor. During the up-anddown motions of the elevatorthe ilexible conductors in the rope D yield to the changes of positions.ln place ol" the rope D the wires c al a? a3, etc., may lead to springs,ears, or rollers c c1 c2 c3, etc., respectively, that project from theelevator and are in respective contact with metallic rods d ell l2 d3,die., that are arranged along the course of the elevator, the wires b b1b2 b3, dic., extending from the ends ot' these rods, substantially asindicated in Fig. 2.

Other modifications in the arrangement of the tlexible or movableconductors may be substituted for those hercinbctbre named, and I do notconiine myselt' to their or any special arrangement thereof.

Having Ythus described my invention, l claim as new and desire to secureby Letters Patentl. The combination of an elevator, which contains anindicator, C, with a series or' flexible or movable metallic conductors,which connect the wires u a a? a3, &c., on the elevator with the wiresi) bl b2 b3, &c., in the building.

rlhc combination oi a movable elevator with an indicator moved byelectrical impulse from stationary floors of a building.

EDVIN HOLMES.

Vitnesses:

JAMES TONMEY, T. B. Moslims.

